흰쥐에서 광물성 섬유상 이물질에 대한 조직 반응과 Matrix Metalloproteinases 및 Tissue Inhibitor of Metalloproteinase의 발현
Foreign Body Reaction and Expression of Matrix Metalloproteinases/Tissue Inhibitor of Metalloproteinase by Injection of Mineral Fibers in Rats
서동권, 이종임, 김정란,
소속 상세정보
서동권 ( Seo Dong-Kweon )
동국대학교 의과대학 병리학교실
이종임 ( Lee Jong-Im )
동국대학교 의과대학 병리학교실
김정란 ( Kim Jung-Ran )
동국대학교 의과대학 병리학교실
KMID : 0357920110450060604
Abstract
Background : The host response to natural fibers results in granuloma formation in an effort to limit tissue destruction. Matrix metalloproteinases (MMPs) are important molecules in the inflammatory granulomatous or reparative reaction. Here, we studied the foreign body reaction that occurs following natural fibers implantation by investigating MMPs and tissue Inhibitor of MMPs (TIMPs) in an in vivo model.
Methods : Female Sprague-Dawley rats were treated with crocidolite fiber or fibrous talc via subcutaneous and intraperitoneal injections and immunohistochemistry was conducted to confirm the expression of MMPs and TIMP-2 in tissue sections.
Results : We identified that mineral fibers elicited granulomas. Fibrous talc or intraperitoneal injection resulted in larger granulomas and severe tissue destruction compared with the lesions induced by crocidolite or subcutaneous injection. The expression of MMPs was elevated while granulomatous lesions were formed. The relative levels of MMPs were lower in the talc injected or intraperitoneal route models than those of crocidolite injected or subcutaneous injection models during the entire experiment.
Conclusions : These findings demonstrate that specific expression of MMPs/TIMP is inversely related to the grade of tissue destruction and suggest that expression of MMPs is required for promoting granuloma formation and limiting tissue destruction.
키워드
Fibrous talc; Talc; Asbestos; Crocidolite; Foreign body reaction
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